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GillIsTheMan
10-01-2003, 11:29 PM
I dont own a 3 wheeler (yet), but i DO own a minibike, and i bought an 82 ATC 110 engine off of ebay because the mounts are identical for the z50 and ATC 110. Im trying to get the bike fast enough to keep up with highway traffic, and even tho 110 cc's is more than double 50, i was wondering weather or not i could exchange the 110's crank for the 185/200 crank. Nonetheless, i want to bore it out to the size of a 185's bore, and im not familliar with these engines yet. Is there anybody out there who has tried this? are the cranks interchangeable? AND/OR is there enough meat on the cylinders for me to bore it to the 185's piston size? If anybody is KNOWLEDGEABLE on the subject, and wants to offer advice, id like to hear it. Thanks

TimSr
10-02-2003, 08:39 AM
You want to drive at z50 in highway traffic? Your not going to do it with a 110 motor, and even if you could, have you given any thought to how a z50 would handle and brake at those speeds?

Used street bikes, especially smaller ones are pretty inexpensive, or you get an old trail and street bike for a few hundred dollars.

200xer
10-02-2003, 12:42 PM
i believe the biggest you can go is 125.

86waterpumper
10-02-2003, 02:16 PM
In some of the really old three wheeler mags, back when nothing faster was available, many people ran 110 bikes that were bored and stroked up to 150, or maybe a tad higher, but I never saw any up as high as you mentioned. You've got to think of it this way, 185 or 200 cc, is nearly double the original size.

GillIsTheMan
10-02-2003, 05:46 PM
Thanks, to the people who gave me some experience tips. And in response to the first post, no, i dont want to actually go 75 miles an hour, but if i do want to go as fast as 50mph, i want the bike to have the balls to get up to that speed quickly. The reason im doing this to a z50 is that with its small engine size and auto clutch, i can have it registered as a moped, and not need to spend money for insurance and a REAL motorcycle registration, then switch the engine. I dont have a truck, and i dont live in the boonies, so i need a legal way to get it from trail to trail, and that's my way. Geared right, and with the right compression, a 110 cc engine on a 130 pound bike with a 150 pound rider will be able to hit about 60, and with 12 inch tires, and 1.5 inches of suspension travel, no, i wont be going that fast, at least not often. Thanks anyways for your reccomendation, but im waiting until im out of skool to get a streetbike. Im just doing this for a gag, and it wont cost me the $1100 a cheap streetbike will.

HypnotizeMindz
10-08-2003, 12:05 AM
i got a 88 zb50 with a atc 70 top end ....

used to run about 40... now it doesnt get spark :(